ASTM D4977/D4977M-03(2013)e1
(Test Method)Standard Test Method for Granule Adhesion to Mineral Surfaced Roofing by Abrasion
Standard Test Method for Granule Adhesion to Mineral Surfaced Roofing by Abrasion
SIGNIFICANCE AND USE
3.1 This test method is used to determine the quality of adhesion of the granular surfacing to the coating asphalt in a sample of mineral surfaced roofing. The results determine compliance with the applicable specification requirements or for comparative analysis. This test method applies to “as manufactured” material and may not be applicable to material that has had weathering exposure.
SCOPE
1.1 This test method covers the determination of granule adhesion to mineral surfaced roofing due to abrasion.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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´1
Designation:D4977/D4977M −03 (Reapproved 2013)
Standard Test Method for
Granule Adhesion to Mineral Surfaced Roofing by Abrasion
This standard is issued under the fixed designation D4977/D4977M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—Units information was editorially corrected in November 2013.
1. Scope 4. Apparatus
1.1 This test method covers the determination of granule 4.1 Granule Adhesion Test Apparatus —A machine de-
adhesion to mineral surfaced roofing due to abrasion. signed to cycle a test brush back and forth horizontally across
a specimen at a rate of 50 cycles for 60 to 70 s. The brush
1.2 The values stated in either SI units or inch-pound units
assembly rests on the specimen with a downward mass of 2268
are to be regarded separately as standard. The values stated in
67g[5lb 6 ⁄4 oz]; the stroke length is 152 66mm[6 6
each system may not be exact equivalents; therefore, each
⁄4 in.]. A typical machine is shown in Fig. 1.
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance 4.2 AbrasionTestBrush —Abrushwith22holescontaining
with the standard. bristles made of 0.305-mm [0.012-in.] diameter tempered steel
wire, 40 wires per hole, set with epoxy.The design of the brush
1.3 This standard does not purport to address all of the
is shown in Fig. 2.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.3 Balance Minimums, 200 g capacity with 0.01 g sensi-
priate safety and health practices and determine the applica- tivity.
bility of regulatory limitations prior to use.
5. Test Specimens
2. Summary of Test Method
5.1 Cut a minimum of two 50.8 by 229-mm [2 by 9-in.]
specimens with the long dimension in the machine direction.
2.1 A brush with bristles is used to abrade the granule
For shingles whose geometry does not allow a continuous 50.8
surface of the specimen on mineral surfaced roofing. The
by 229-mm [2 by 9-in.] specimen, two-piece specimens are
adhesion is assessed by weighing the amount of granules that
permitted. The minimum machine direction dimension of any
are displaced and become loose as a result of the abrasion test.
given piece is 101.6 mm [4 6 ⁄4 in.]. It is permitted to join the
3. Significance and Use two pieces with self-stick tape applied to the nongranulated
surfaces.
3.1 This test method is used to determine the quality of
adhesion of the granular surfacing to the coating asphalt in a
NOTE 1—The test result shall be discarded if the specimen fails to
remain flat or the two pieces become separated during the 50 complete
sample of mineral surfaced roofing. The results determine
abrasion cycles.
compliance with the applicable specification requirements or
5.2 Condition specimens at room temperature 23 6 2°C
for comparative analysis. This test method applies to “as
manufactured” material and may not be applicable to material [73.4 6 3.6°F] for 30 min before testing. In case of dispute,
condition specimen for 24 h in a desiccator.
that has had weathering exposure.
The sole source of supply of the apparatus (3M Granule Embedding Test
This test method is under the jurisdiction ofASTM Committee D08 on Roofing Machine andAbrasionTest Brushes) known to the committee at this time is 3M, 3M
andWaterproofingandisthedirectresponsibilityofSubcommitteeD08.02onSteep Center,St.Paul,MN55144.Ifyouareawareofalternativesuppliers,pleaseprovide
Roofing Products and Assemblies. this information to ASTM International Headquarters. Your comments will receive
Current edition approved Nov. 1, 2013. Published November 2013. Originally careful consideration at a meeting of the responsible technical committee, which
approved in 1989. Last previous edition approved in 2009 as D4977 – 03 (2009). you may attend.
DOI:
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